Karen Walton is a Canadian screenwriter.
A native of Halifax, Nova Scotia, Karen Walton wrote the film Ginger Snaps, for which she won a Best Film Writing Canadian Comedy Award in 2002. She later wrote for the Canadian television series What It's Like Being Alone . and also for three episodes of the American version of Queer as Folk, where she also served as executive story consultant.
She appeared in the 2009 documentary Pretty Bloody: The Women of Horror.
In recent years, she has served as a writer or writer/producer on Canadian television series including Flashpoint, The Listener and Orphan Black, which is distributed by BBC Worldwide and airs on BBC America in the United States.